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Owner’s Manual

Cat. No. 20-513

PRO-74 100-Channel VHF/UHF/Air/800 MHz Race Scanner Please read before using this equipment.

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FEATURES Your new RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz Race Scanner lets you in on the action in the pits at the big race or on the streets of your home town. This scanner gives you direct access to more than 30,000 frequencies, including those used by participants and staff at auto races and air shows, by government agencies, police and fire departments, ambulance and transportation services, and amateur radio. You can select up to 100 channels for your scanner to scan, and you can change any of those selections at any time. We have included a frequency guide with your PRO-74 that includes listings by state for many of the frequencies you can listen to. Your scanner has these special features: Quick-Track Memory — lets you store a car’s number and any frequencies used by the driver’s team into the scanner’s channels. You can recall any of those frequencies by entering the car’s number. Two Supplied Antennas — let you select the antenna that best meets your needs. The supplied stub antenna helps your scanner receive strong local signals and makes the scanner easy to carry and use at events, while the supplied flexible antenna provides excellent reception and is designed to help prevent antenna breakage. Twelve Service Banks — lets you search preset frequencies in separate auto racing, marine, VHF, aircraft, military, ham radio, government, UHF, TV, and 800 MHz banks, to make it easy to locate specific types of calls. Weather Search — lets you easily search the scanner’s 7 preprogrammed weather frequencies. Ten Memory Banks — let you store 10 channels in each of 10 banks to group channels so you can more easily identify calls. Priority Channels — lets you program one channel in each bank (10 in all) and then have the scanner check it every 2 seconds so you don't miss transmissions on that channel.

1998 Tandy Corporation. All Rights Reserved. RadioShack is a registered trademark used by Tandy Corporation. Hypersearch is a trademark used by Tandy Corporation. ©

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Hypersearch — lets you set the scanner to search at up to 300 steps per second, to help you quickly find interesting broadcasts. (The normal search speed is 100 steps per second). Two-Second Scan Delay — automatically delays scanning for about 2 seconds before moving to another channel, so you can hear more replies. Lock-Out Function — lets you set your scanner to skip over specified channels. Direct Frequency Search — lets you search all frequencies, starting directly from a specified frequency. Data Signal Skip — lets you set the scanner to skip non-modulated or data signals during searches. This lets the scanner avoid non-voice signals, making a search faster. Search Skip — lets you set the scanner to skip up to 20 frequencies you select during searches. This lets the scanner avoid unwanted signals. Three Power Options — let you power the scanner using alkaline or rechargeable nickel-cadmium batteries, external AC power using an optional AC adapter/charger, or DC power using an optional DC adapter. Memory Backup — keeps the frequencies stored in memory for up to 3 days if the PRO-74 loses power. Key Confirmation Tones — the scanner sounds a tone when you perform an operation correctly, and an error tone if you make an invalid entry. You can turn the key confirmation tones on or off. Display Backlight — makes the scanner easy to read in low-light situations. Battery Low Alert — warns you when battery power gets low. Battery Save — saves battery power when the scanner does not detect any transmissions for more than 5 seconds while a channel is manually selected or while you are programming the scanner. Key Lock — lets you lock the scanner's keys to help prevent accidental changes to the scanner's programming. 3

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Resume Start — the scanner saves its settings when you turn the power off. This returns you to the function you were using if you accidentally turn the scanner off or the batteries are weak. Triple-Conversion Circuitry — virtually eliminates any interference from IF (intermediate frequency) images, so you hear only the selected frequency. Your scanner can receive these bands: Frequency Range (MHz)

Step (kHz)

Transmission

29–29.7 29.7–50 50–54 108–136.975 137–144

5 5 5 12.5 5

144–148 148–174 406–450

5 5 12.5

450–470 470–512 806–823.9375

12.5 12.5 12.5

851–868.9375 896.1125–956.000

12.5 12.5

10-Meter Ham Band VHF Lo 6-Meter Ham Band Aircraft/Air Shows Auto Racing, Aircraft/Air Shows, Government, Motion Picture/Video Industry, Pro Sports Teams, Radio/TV Remote Broadcast Pickup, Stadiums/Venues 2-Meter Ham Band VHF Hi 70-cm Ham Band and Federal Government UHF Standard Band UHF “T” Band Public Service “800” Band, except cellular band UHF Hi UHF Hi

We recommend you record your scanner’s serial number here. The number is on the back panel. Serial Number: ___________________________

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FCC NOTICE Your scanner might cause radio or TV interference even when it is operating properly. To determine whether your scanner is causing the interference, turn off your scanner. If the interference goes away, your scanner is causing it. Try the following methods to eliminate the interference: • Move your scanner away from the receiver • Connect your scanner to an outlet that is on a different electrical circuit from the receiver • Contact your local RadioShack store for help Note: Mobile use of this scanner is unlawful or requires a permit in some areas. Check the laws in your area.

SCANNING LEGALLY Your scanner covers frequencies used by many different groups including police and fire departments, ambulance services, government agencies, private companies, amateur radio services, military operations, pager services, and wireline (telephone and telegraph) service providers. It is legal to listen to almost every transmission your scanner can receive. However, there are some transmissions you should never intentionally listen to. These include: • Telephone conversations (cellular, cordless, or other private means of telephone signal transmission) • Pager transmissions • Any scrambled or encrypted transmissions According to the Electronic Communications Privacy Act (ECPA), you are subject to fines and possible imprisonment for intentionally listening to, using, or divulging the contents of such a transmission unless you have the consent of a party to the communication (unless such activity is otherwise illegal). This scanner has been designed to prevent reception of illegal transmissions. This is done to comply with the legal requirement that scanners be manufactured so as to not be easily modifiable to pick up those transmissions. Do not open your scanner's case to make any modifications that could allow it to pick up transmissions that it is not legal to listen to. Doing so could subject you to legal penalties. We encourage responsible, legal scanner use. 5

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CONTENTS Preparation ....................................................................................... 9 Power Sources ............................................................................ 9 Using Internal Batteries ........................................................ 9 Charging Nickel-Cadmium Batteries .................................. 11 Using Standard AC Power ................................................. 12 Using Vehicle Battery Power .............................................. 13 Connecting an Antenna ............................................................ 14 Connecting an Optional Antenna ....................................... 15 Connecting an Extension Speaker ............................................ 16 Connecting an Earphone/Headphones ..................................... 16 Listening Safely ................................................................. 17 Traffic Safety ...................................................................... 17 Attaching the Belt Clip ............................................................... 17 Understanding Your Scanner ........................................................ A Look at the Keypad ................................................................ A Look at the Display ................................................................ Understanding Banks ................................................................ Memory Banks ................................................................... Service Banks ....................................................................

18 18 20 22 22 22

Operation ........................................................................................ Turning On the Scanner and Setting Squelch ........................... Storing Known Frequencies into Channels ............................... Finding and Storing Active Frequencies ................................... Searching the Service Banks ............................................. Searching from a Selected Frequency ............................... Storing Active Frequencies ................................................ Search Skip Memory ................................................................. Manually Selecting a Channel ................................................... Scanning Channels ................................................................... Deleting a Frequency from a Channel ...................................... Listening to Weather Broadcasts ..............................................

24 24 25 26 26 27 28 28 29 30 30 31

Using the PRO-74 at the Races ..................................................... Storing a Car Number and Frequency ...................................... Adding Frequencies to a Car Number ............................... Viewing Frequencies Associated with a Car Number ........ Deleting a Frequency from a Car Number ......................... Scanning by Car Number .......................................................... Finding What Car Numbers are in What Channels ...................

32 32 33 34 34 34 35

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Special Features ............................................................................. 36 Turning Memory Banks On and Off ........................................... 36 Locking Out Channels ............................................................... 36 Priority ....................................................................................... 36 Using the Keylock ...................................................................... 38 Using the Display Backlight ....................................................... 38 Changing Search Speeds .......................................................... 38 Turning the Key Tone Off/On ..................................................... 39 Turning the Battery Save Function Off/On ................................. 39 Skipping Data Signals ............................................................... 40 A General Guide to Scanning ........................................................ 41 Guide to Frequencies ................................................................ 41 National Weather Frequencies ........................................... 41 Canadian Weather Frequencies ......................................... 41 VHF FM Marine Frequencies ............................................. 41 Birdie Frequencies ............................................................. 42 Guide to the Action Bands ......................................................... 43 Typical Band Usage ........................................................... 43 Primary Usage .................................................................... 44 Band Allocation ......................................................................... 44 Frequency Conversion .............................................................. 48 Troubleshooting .............................................................................. 49 Resetting the Scanner ............................................................... 50 Care and Maintenance .................................................................... 51 Specifications ................................................................................. 52

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PREPARATION POWER SOURCES You can power your scanner from any of three sources: • Internal batteries (not supplied) • Standard AC power using an optional AC adapter • Vehicle battery power using an optional DC adapter

Using Internal Batteries You can power your scanner using four AA batteries. For the longest operation and best performance, we recommend you use alkaline batteries (such as RadioShack Cat. No. 23-552). You can also use four rechargeable nickel-cadmium batteries (Cat. No. 23-125). Before you use nickel-cadmium batteries, you must charge them (see “Charging Nickel-Cadmium Batteries” on Page 10). Follow these steps to install batteries. 1. While pushing up the tab above the battery compartment cover on the back of the scanner, lift open the battery compartment cover to remove it.

2. If you are installing alkaline batteries, use a pointed object such JACK NI-CD inside the compartas a pen to set ALKALINE ment to ALKALINE. Or, if you are installing nickel-cadmium batteries, set it to NI-CD.

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Warning: Never set ALKALINE JACK NI-CD to NI-CD if you are installing non-rechargeable batteries. Non-rechargeable batteries can get hot or explode if you try to recharge them. 3. Install two batteries in the compartment and two in the cover as indicated by the polarity symbols (+ and –) marked inside those locations.

Cautions: • Use only fresh batteries of the required size and recommended type. • Always remove old or weak batteries. Batteries can leak chemicals that destroy electronic circuits. • Do not mix old and new batteries, different types of batteries (alkaline or rechargeable), or rechargeable batteries of different capacities. 4. Replace the cover. If BATT.Lo flashes and the scanner beeps every 15 seconds, replace (alkaline) or recharge (rechargeable nickel-cadmium) the batteries. Caution: Always dispose of old batteries promptly and properly. Do not bury or burn them.

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Charging Nickel-Cadmium Batteries The scanner has a built-in circuit that lets you recharge nickel-cadmium batteries while they are in the scanner. To charge the batteries, set ALKALINE JACK NI-CD to NI-CD, install the nickel-cadmium batteries in the scanner, and connect an external AC or DC adapter to the scanner’s POWER jack (see “Using Standard AC Power” on Page 11 or “Using Vehicle Battery Power” on Page 12). Warning: Do not connect either adapter to the scanner if you have non-rechargeable batteries (such as alkaline batteries) installed in the scanner and ALKALINE JACK NI-CD is set to NI-CD, or you are unsure of the switch’s position. Non-rechargeable batteries will get hot and can even explode if you try to recharge them. Before you use nickel-cadmium batteries for the first time, charge them at least 24 hours to bring them to a full charge. Discharged batteries take about 10 to 18 hours to fully recharge. It takes longer to fully charge them if you operate the scanner while you recharge them. Notes: • Nickel-cadmium batteries last longer and deliver more power if you occasionally let them fully discharge. To do this, simply use the scanner until it begins beeping every 15 seconds and BATT.Lo flashes. • To prevent damaging nickel-cadmium batteries, never charge them in an area where the temperature is above 113°F or below 40°F. Important: At the end of a rechargeable battery’s useful life, it must be recycled or disposed of properly. Contact your local, county, or state hazardous waste management authorities for information on recycling or disposal programs in your area. Some options that might be available are: municipal curb-side collection, drop-off boxes at retailers such as your local RadioShack store, recycling collection centers, and mailback programs.

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Using Standard AC Power You can power the scanner from a standard AC outlet using an optional AC adapter (such as Cat. No. 273-1665). Warning: Do not use an AC adapter’s polarized plug with an extension cord, receptacle, or other outlet unless the blades can be fully inserted to prevent blade exposure. Cautions: • The recommended AC adapter supplies 9 volts and delivers at least 300 milliamps. It has a barrel plug with a center negative tip that correctly fits the scanner’s POWER jack. Using an adapter that does not meet these specifications could damage the scanner or the adapter. • To protect your scanner and AC adapter, always plug the adapter into the scanner before you plug it into the AC outlet, and always unplug the adapter from the AC outlet before you unplug it from the scanner. • If batteries are installed, make sure ALKALINE JACK NI-CD is set to the correct position (see “Using Internal Batteries” on Page 8). 1. Turn VOLUME counterclockwise until it clicks to make sure power is turned off. 2. Plug the adapter’s 3.4 mm outside diameter/1.3 mm inside diameter barrel plug into your scanner’s POWER jack.

3. Plug the other end of the adapter into a standard AC outlet.

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Using Vehicle Battery Power To power the scanner from your vehicle's cigarette-lighter socket, you need a DC adapter, such as Cat. No. 270-1560. Cautions: • The DC adapter must be capable of delivering 9 volts and at least 300 milliamps, its center tip must be set to negative, and its barrel plug must correctly fit the scanner's POWER jack. The recommended adapter meets these specifications. Using an adapter that does not meet these specifications could damage the scanner or the adapter. • To protect your vehicle's electrical system, always plug the adapter into the scanner before you plug it into your vehicle's cigarettelighter socket. Always unplug the adapter from the vehicle's cigarette-lighter socket before you unplug it from the scanner. • If batteries are installed, make sure ALKALINE JACK NI-CD is set to the correct position (see “Using Internal Batteries” on Page 8). 1. Turn VOLUME counterclockwise until it clicks to make sure power is turned off. 2. Set the DC adapter’s voltage switch to 9V. 3. Connect the adapter’s 3.4 mm outer diameter/1.3 mm inner diameter tip to the adapter’s cord, matching TIP to –. 4. Plug the adapter’s barrel plug into your scanner’s POWER jack.

5. Plug the other end of the adapter into your vehicle’s cigarettelighter socket.

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When you finish using the DC adapter, disconnect it from the cigarettelighter socket, then disconnect it from your scanner. Note: If the scanner does not operate properly when you connect a DC adapter, unplug the adapter from the cigarette-lighter socket and clean the socket to remove ashes and other debris.

CONNECTING AN ANTENNA The supplied stub antenna helps your scanner receive most strong transmissions at events and makes the scanner easier to carry and use. The supplied flexible antenna provides slightly better reception and helps your scanner receive strong local signals. You can attach either of the supplied antennas or an optional antenna to the scanner (see “Connecting an Optional Antenna” on Page 14). Follow these steps to attach either of the supplied antennas to the connector on the top of your scanner.

1. Align the slots around the antenna’s connector with the tabs on the scanner’s BNC connector. 2. Slide the antenna’s connector down over the scanner’s connector and rotate the antenna connector’s outer ring clockwise until it locks into place.

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Connecting an Optional Antenna The scanner’s antenna jack makes it easy to use the scanner with a variety of antennas. Instead of either of the supplied antennas, you can attach a different one, such as an external mobile antenna or outdoor base station antenna. Your local RadioShack store sells a variety of antennas. Always use 50-ohm coaxial cable, such as RG-58 or RG-8, to connect an outdoor antenna. For lengths over 50 feet, use RG-8 low-loss dielectric coaxial cable. If your antenna’s cable does not have a BNC connector, use a BNC adapter, available at your local RadioShack store. Follow the installation instructions supplied with the antenna, route the antenna cable to the scanner, then connect it to the antenna jack following the steps in “Connecting an Antenna” on Page 13. Warning: Use extreme caution when installing or removing an outdoor antenna. If the antenna starts to fall, let it go! It could contact overhead power lines. If the antenna touches a power line, contact with the antenna, mast, cable or guy wires can cause electrocution and death! Call the power company to remove the antenna. Do not attempt to do so yourself. Cautions: • Do not run the cable over sharp edges or moving parts. • Do not run the cable next to power cables or other antenna cables. • Do not run the cable through a vehicle’s engine compartment or other areas that produce extreme heat. • Follow all cautions and warnings included with the antenna.

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CONNECTING AN EXTENSION SPEAKER In a noisy area, an extension speaker (such as Cat. No. 21-549), positioned in the right place, might provide more comfortable listening. Plug the speaker cable’s 1/ 8-inch mini-plug into your scanner’s jack.

CONNECTING AN EARPHONE/ HEADPHONES For private listening, you can plug an earphone or headphones with a 1/8-inch mini-plug (such as Cat. No. 33-178 or 20-210) into the jack on top of your scanner. This automatically disconnects the internal speaker.

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Listening Safely To protect your hearing, follow these guidelines when you use an earphone or headphones. • Do not listen at extremely high volume levels. Extended highvolume listening can lead to permanent hearing loss. • Set the volume to the lowest setting before you begin listening. After you begin listening, adjust the volume to a comfortable level. • Once you set the volume, do not increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing.

Traffic Safety Do not use an earphone/headphones with your scanner when operating a motor vehicle or riding a bicycle in or near traffic. Doing so can create a traffic hazard and could be illegal in some areas. If you use an earphone/headphones with your scanner, be very careful. Do not listen to a continuous broadcast. Even though some earphones/ headphones let you hear some outside sounds when listening at normal volume levels, they still can present a traffic hazard.

ATTACHING THE BELT CLIP You can attach the supplied belt clip to make your scanner easier to use when you are on the go. Use a Phillips screwdriver and the two supplied screws to attach the belt clip to the scanner. Then slide the belt clip over your belt or waistband.

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UNDERSTANDING YOUR SCANNER Once you understand a few simple terms we use in this manual and familiarize yourself with your scanner’s features, you can put the scanner to work for you. You simply find the communications you want to receive, then set the scanner to scan them. A frequency is the tuning location of a station (expressed in kHz or MHz). To find active frequencies, you can use the search function. You can also search the memory banks, which are preset groups of frequencies categorized by type of service. When you find a frequency, you can store it into a programmable memory location called a channel, which is grouped with your other channels in a memory bank. You can then scan the memory banks to see if there is activity on the frequencies stored there. Each time the scanner finds an active frequency, it stays on that channel until the transmission ends. Remember, you search frequencies and scan channels.

A LOOK AT THE KEYPAD Your scanner’s keys might seem confusing at first, but this information should help you understand each key’s function.

RACE

HOLD

M AN

DATA

PRIORITY L- OU T H/S

S/S

DEL

PROG

BAND

SCAN

1-10

11-2 0

1

2

3

31-40

41-5 0

51-60

21-30

4

5

6

61-70

71-8 0

81-90

7

K EYLOC K CLE AR

8

9

9 1- 1 0 0

WX

0

E

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RACE — lets you store car numbers and frequencies in the scanner’s channels, add and delete frequencies from car numbers, display car numbers, and listen to the channel where a car number is stored. MAN — stops scanning and lets you directly enter a channel number or frequency. PROG — stores frequencies into channels. BAND — lets you search service banks. SCAN — scans through stored channels. HOLD — holds a frequency search. DATA — turns on or off the data signal skip feature, and lets you se-

quentially recall channels where car numbers and frequencies are stored during manual operation. PRIORITY/H/S — sets and turns on and off priority for a particular chan-

nel. Also turns Hypersearch on and off. L-OUT/S/S — lets you lock out a selected channel and skips a specified frequency during a service bank, direct, or weather search.

t and s — enters the search direction (down or up). DEL — deletes the frequencies and car numbers stored in the memory. KEYLOCK/ — locks the keypad to prevent accidental program changes. Also turns on the display light for 15 seconds.

Number Keys — each key is marked with a single digit, and has a range of numbers printed above it. The single digits are used to enter a channel or frequency. The range of numbers (31–40, for example) indicates the channels that make up a memory bank.

•

CLEAR/ — erases an incorrect entry or an error, and enters a decimal

point.

WX/E — selects a weather channel, and enters the frequency when you store a frequency into a channel.

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A LOOK AT THE DISPLAY The display has indicators that show the scanner’s current operating status. A good look at the display will help you understand how your scanner operates.

BANK 1 2 3 4 5 6 7 8 9 10 BATT.Lo K / L RACE PRI DA TA HOLD W X HYPER NO. MR N

P

CH SCAN MA N PG M L/ O S

MHz SEARCH

BANK — appears with numbers (1–10) to show which memory banks are turned on for scanning. Service bank indicators — appear when you select the scanner’s service banks (see “Service Banks” on Page 21).

BATT.Lo — flashes when the batteries are low. K/L — appears when you lock the keypad. RACE — appears when you store car numbers and frequencies in the scanner’s channels, add and delete frequencies from car numbers, display car numbers, and move to the channel where a car number is stored.

PRI — appears when you set the scanner to scan the priority channels every 2 seconds.

DATA — appears when you turn on the data skip function. HOLD — appears during a search hold. WX — appears when you search the preset frequencies in the weather band.

HYPER — appears when you are using Hypersearch during service bank and direct search. However, HYPER disappears when the scanner searches any frequency bands other than the 5 kHz step bands. 19

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No. — appears when a car number is displayed MRN — appears with

CH when you select the scanner’s marine service bank (see “Service Banks” on Page 21). P — appears when you listen to a priority channel.

CH — digits that precede this indicator show which of the 100 channels the scanner is tuned to. MHz — digits that precede this indicator show which frequency the scanner is tuned to. 5 appears directly above the MHz indicator when the displayed frequency is an odd multiple of 12.5 kHz (for frequencies between 406–956 MHz, or 108–136.975 MHz).

SCAN — appears when you scan channels. MAN — appears when you manually select a channel. PGM — appears while you store (program) frequencies into the scanner’s channels.

L/O — appears when you manually select a locked channel or a skip frequency.

S

— appears when the battery save function is active.

t and s — indicate the search direction.

SEARCH — appears during a service bank, direct, or weather search. -d- — appears during a direct search. Error — appears when you make an invalid entry.

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UNDERSTANDING BANKS Memory Banks To make it easier to identify and select the channels you want to listen to, the PRO-74’s channels are divided into 10 banks of 10 channels each. Use each memory bank to group frequencies, such as the police department, fire department, ambulance services, or aircraft (see “Guide to the Action Bands” on Page 42). For example, the police department might use four frequencies, one for each side of town. You could program the police frequencies starting with Channel 1 (the first channel in bank 1) and program the fire department frequencies starting with Channel 11 (the first channel in bank 2).

Service Banks You can search for auto racing, marine, VHF, aircraft, military, amateur radio, government, UHF, TV, and 800 MHz transmissions even if you do not know the specific frequencies that are used in your area. And, you can store any of the frequencies you find into channels. This table shows each service bank’s name, what it is used for, and its frequencies. Name

Typical Usage

Frequency Range (in MHz)

Auto Racing

150.9950–151.9550 152.8700–153.7250 154.4900–154.6250 460.0000–470.0000

MRN CH

Marine

Listed in “VHF FM Marine Frequencies” on Page 40.

LO

VHF Lo

29.0000–54.0000

AIr

Air

108.0000–136.9750

MIL

Military

137.0000–144.0000

CAr

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Name

Typical Usage

Frequency Range (in MHz)

2-Meter Ham

144.0000–148.0000

VHF Hi

148.0000–174.0000

FEd

Federal Government

406.0000–420.0000

HAM

70-Centimeter Ham

420.0000–450.0000

UHF

UHF

450.0000–470.0000

TV

470.0000–512.0000

800 MHz

806.0000–823.9375 851.0000–868.9375 896.1125–956.0000

HAM HI

TV 800

Your scanner also has 7 preprogrammed weather frequencies. For example, if you wanted to search for transmissions between a driver and that driver’s pit crew at an auto race, you could search only the service bank where you are most likely to hear the transmissions (CAr). Notes: •

The frequencies in the scanner’s service banks are preset. You cannot change them.

•

“Band Allocation” on Page 43 lists frequency ranges and the broadcasters you are likely to hear on those frequencies.

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OPERATION TURNING ON THE SCANNER AND SETTING SQUELCH Note: Make sure an antenna is connected to the scanner before you turn it on. 1. Turn SQUELCH fully counterclockwise. PR O-7 4 VO LUME

SQUE LCH OFF

2. Turn VOLUME clockwise until it clicks and you hear a hissing sound. PRO-74 VO L UM E

SQ UEL CH OFF

3. Turn SQUELCH clockwise, then leave it set to a point just after the hissing sound stops. Notes: • If you have not stored frequencies into any channels, the scanner does not scan. • If the scanner picks up unwanted, partial, or very weak transmissions, turn SQUELCH clockwise to decrease the scanner's sensitivity to these signals. If you want to listen to a weak or distant station, turn SQUELCH counterclockwise. • If SQUELCH is adjusted so you always hear a hissing sound, the scanner does not scan properly. 23

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STORING KNOWN FREQUENCIES INTO CHANNELS Good references for active frequencies are the RadioShack “Beyond Police Call,” “Aeronautical Frequency Directory,” and “Maritime Frequency Directory.” We update these directories every year, so be sure to get a current copy. Follow these steps to store a frequency into a channel. 1. Press MAN, enter the channel number where you want to store a frequency, then press PROG. The channel number appears. 2. Use the number keys and CLEAR/• to enter the frequency (including the decimal point) you want to store. RACE

MA N

PR OG

1-10

HOLD

DA TA

PRIORITY L-O UT H/S

S/ S

DEL

BAND

11-20

SCA N

21-30

1

2

3

31-40

41-50

51-60

4

5

6

61-70

71-80

81-90

7

8

9

91-100

WX

0

E

KEYLOCK CLEA R

3. Press E to store the frequency into the channel. RACE

MA N

PR OG

1-10

HOLD

DA TA

PRIORITY L-O UT H/S

S/ S

DEL

BAND

11-20

SCA N

21-30

1

2

3

31-40

41-50

51-60

4

5

6

61-70

71-80

81-90

7

8

9

91-100

WX

0

E

KEYLOCK CLEA R

Notes: • If you entered an inappropriate frequency in Step 2, Error appears and the scanner beeps three times. Simply repeat Steps 2 and 3.

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• Your scanner automatically rounds the entered frequency to the nearest valid frequency. For example, if you enter a frequency of 151.473, your scanner accepts it as 151.475. • Your scanner automatically delays scanning for 2 seconds after a transmission ends before it proceeds to the next channel. 4. To program the next channel in sequence, press PROG and repeat Steps 2 and 3. Note: If you previously stored a car number in a channel (see “Storing a Car Number and Frequency” on Page 31), the scanner clears the number when you store a new frequency into a channel.

FINDING AND STORING ACTIVE FREQUENCIES Searching the Service Banks Your scanner contains groups of preset frequencies called service banks. Each service bank is associated with a specific activity (see “Service Banks” on Page 21). You can search for auto racing, marine, VHF, aircraft, military, amateur radio, government, UHF, TV, and 800 MHz transmissions even if you do not know the specific frequencies that are used in your area. 1. Press BAND. A service bank’s name, SEARCH, and the frequency search range appear. Note: The frequency search range does not appear if the CAR or MRN CH service bank is selected.

2. To select a different service bank, repeatedly press s or t until the desired bank name appears. 3. Press BAND. The scanner starts searching the frequencies within that service bank. Note: To change the search direction, press s or t. 4. When the scanner stops on a transmission, quickly press either: • t or s to continue searching • HOLD to stop searching so you can listen to the transmission. HOLD appears. 25

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To release hold and continue searching, press HOLD or hold down t or s for more than 1 second. Notes: • To step through the frequencies while HOLD is displayed, press t or s. • If you tune to a search skip frequency, L/O appears (see “Search Skip Memory” on Page 27). • To store a frequency into a channel while the frequency is paused or held, see “Storing Active Frequencies” on Page 27.

Searching from a Selected Frequency If you do not have a reference to frequencies in your area, you can search for transmissions starting with a frequency you select. 1. Press MAN. 2. To start the search from a frequency, enter it using the number keys and CLEAR/•. Or, to start the search from a frequency stored in a channel, enter the channel number, then press MAN. 3. Press t to search downward or s to search upward from the selected frequency. -d-, SEARCH, and t or s appear. R A CE

MAN

PR OG

1- 10

BAND

11-20

21-30

H OLD

D ATA

1

PRIORITY

L-O UT

31-40

H/S

S/ S

4

5

6

61-70

71-80

81-90

DEL

7

K EYL OC K C L EA R

2

SC AN

41- 50

3 51-60

8

9

91-100

WX

0

E

MHz S EA RC H

4. When the scanner stops on a transmission, quickly press either: • t or s to continue searching • HOLD to stop searching so you can listen to the transmission. HOLD appears. To release hold and continue searching, press HOLD or hold down t or s for more than 1 second. 26

20-513.fm Page 27 Wednesday, August 4, 1999 2:39 PM

Notes: • To step through the frequencies while HOLD is displayed, press t or s. • If you tune to a search skip frequency, L/O appears (see “Search Skip Memory” on Page 27). • To store a frequency into a channel while the frequency is paused or held, see “Storing Active Frequencies.”

Storing Active Frequencies To store an active frequency into a channel, press PROG while the frequency is paused or held. The lowest available channel number flashes. • To enter the frequency into that channel, press E. • To change the channel, enter the desired channel number, then press PROG. The frequency currently stored in that channel (if any) appears for about 2 seconds, then the new frequency appears. Press E to store the new frequency. Notes: • If you previously stored a car number and frequency in a channel (see “Storing a Car Number and Frequency” on Page 31), the scanner clears the number and frequency when you store a new frequency into that channel. • If there are no empty channels, the channel number changes to 1 and FULL appears. To clear FULL from the display, press CLEAR.

SEARCH SKIP MEMORY You can skip up to 20 specified frequencies during a service bank, direct, or weather search. This lets you avoid unwanted frequencies or ones you have already stored in a channel. You can specify all 20 frequencies to be skipped during one type of search (direct search, for example), or you can divide the frequencies you skip among two or all three search types. 27

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To skip a frequency, press S/S when the scanner stops on the frequency during a search. The scanner stores the frequency in memory and automatically resumes the search.

RACE

MA N

PR OG

1-10

HOLD

DA TA

PRIORITY L-O UT H/S

S/ S

11-20

SCA N

21-30

1

2

3

31-40

41-50

51-60

4

5

6

71-80

81-90

61-70

DEL

To clear a single frequency from search skip memory so the scanner can stop on it during a search, follow these steps.

BAND

7

KEYLOCK CLEA R

8

9

91-100

WX

0

E

1. Press HOLD to hold the search. 2. Press ) or ( to select the frequency. L/O appears. 3. Press S/S. L/O disappears from the display. To clear all the search skip frequencies at once, during a search, press HOLD, then hold down S/S until the scanner beeps twice (about 3 sec-

onds). Notes: • If you skip all the frequencies in the weather band, the scanner will not start searching. In this case, the scanner sounds three beeps. • If you program more than 20 frequencies to skip, each new frequency replaces one you already stored, starting from the first frequency you stored. • You can manually select a skipped frequency. L/O appears on the display when you select a skipped frequency.

MANUALLY SELECTING A CHANNEL You can continuously monitor a single channel without scanning. This is useful if you hear an emergency broadcast on a channel and do not want to miss any details — even though there might be periods of silence — or if you want to monitor a specific channel.

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Note: You cannot use this procedure to select a car number. See “Viewing Frequencies Associated with a Car Number” on Page 33 to select a car number. To manually select a channel, press MAN, enter the channel number, then press MAN again. Or, if your scanner is scanning and stops at the desired channel, press MAN once. Pressing MAN additional times causes your scanner to step through the channels. To resume scanning, press SCAN.

SCANNING CHANNELS To begin scanning channels, press SCAN. The scanner scans through all non-locked channels in all banks that are turned on, from the lowest to the highest channel number. (See “Turning Memory Banks On and Off” and “Locking Out Channels” on Page 35). When the scanner finds a transmission, it stops on it. Two seconds after the transmission ends, the scanner resumes scanning. Note: If SQUELCH is adjusted so you always hear a hissing sound, the scanner does not scan properly.

DELETING A FREQUENCY FROM A CHANNEL 1. Press PROG. 2. Enter the channel number that contains the frequency you want to delete, then press PROG. 3. Press DEL. The frequency is deleted.

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LISTENING TO WEATHER BROADCASTS The FCC (Federal Communications Commission) has allocated frequencies for use by the National Oceanic and Atmospheric Administration (NOAA). Regulatory agencies in other countries have also allocated frequencies for use by their weather reporting authorities. Your local weather reporting authority broadcasts your local forecast and regional weather information on one or more of these frequencies. If your scanner is within a weather reporting authority’s broadcast range, you can scan these frequencies. Your scanner has 7 weather service frequencies preprogrammed. See “National Weather Frequencies” on Page 40 for a list of these frequencies. To hear your local forecast and regional weather information, simply press WX. Your scanner scans through the weather frequencies. Your scanner should stop within a few seconds on your local weather broadcast. To manually tune to a specific preprogrammed weather frequency, press WX, then HOLD. Repeatedly press s or t to move forward or backward through the frequencies.

30

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USING THE PRO-74 AT THE RACES The PRO-74 is specially designed to help you listen to communications at auto races. Drivers and their pit crews and corner watchers, pace car drivers, security officers, emergency personnel, track officials, and representatives of governing organizations such as NASCAR, SCCA, and NHRA all use radios to communicate with each other during a race. You might also hear transmissions from the news media and reporters, local police departments, and paramedics and doctors at the local hospital. You can even listen to broadcasts by parking lot employees at the track, so you can find the best possible parking place when you arrive. The scanner’s quick-track memory lets you store a car number and frequency in each of the scanner’s channels, associate one or more frequencies stored in channels with a car number, and recall any frequencies associated with that car number by entering the number. You can store one car number by itself, one car number and frequency, or one frequency by itself in each channel (for up to 100 car numbers and frequencies). For example, if you want to listen to communications between the driver of car number 24 and that driver’s pit crew, find all the frequencies used by the driver’s team by using the steps in “Searching the Service Banks” on Page 25, using the supplied frequency guide, “Searching from a Selected Frequency” on Page 26, or using frequencies you already know, then store a car number and the frequencies associated with that car number in the scanner’s channels. Then, you can display the car number as you scan those frequencies by using the information in “Scanning by Car Number” on Page 33.

STORING A CAR NUMBER AND FREQUENCY You can store a car number and frequency in each of the scanner’s channels, and you can recall any frequencies associated with the car number by entering the number. You can store one car number in each channel (for up to 100 car numbers). Note: After you store a car number and a frequency, you can store additional frequencies then associate those frequencies with the same car number. See “Adding Frequencies to a Car Number” on Page 32.

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Follow these steps to store a car number and frequency. 1. Press MAN then RACE. RACE and Car No?--- appears. 2. Enter the car number. If the number is one or two digits, enter the number, then press RACE. If the number is three digits, enter the number only. The car number and ---.--- appear. Notes: • If you add one or more leading zeros to a single-digit car number, your scanner recognizes them as different car numbers. For example, you can enter 5 for one car number, 05 for another car number, and 005 for another car number. • To clear the display, press CLEAR/• before you press RACE. 3. Enter the frequency (including the decimal point) you want to associate with the car number by using the number keys and CLEAR/•. 4. Press E to store the frequency. The car number and frequency are stored in the first available channel.

Adding Frequencies to a Car Number Follow these steps to select a car number then associate additional frequencies with that car number. 1. Press MAN then RACE. RACE and Car No?--- appears. 2. Enter the car number. If the number is one or two digits, enter the number, then press RACE. If the number is three digits, just enter the number. The car number and the first frequency associated with that number appears. 3. Repeatedly press s or t until ---.--- appears. 4. Enter the frequency (including the decimal point) you want to associate with the displayed car number by using the number keys and CLEAR/•. 5. Press E to store the frequency. The frequency is associated with the car number you entered.

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Viewing Frequencies Associated with a Car Number After you store a car number and associate frequencies with that number, you can view all frequencies associated with the number. 1. Press MAN then RACE. RACE and Car No?--- appears. 2. Enter the car number. If the number is one or two digits, enter the number, then press RACE. If the number is three digits, just enter the number. One of the frequencies associated with the car number appears. 3. Repeatedly press s or t to view each of the frequencies associated with the car number you entered. When you have viewed all the frequencies, the display shows ---.---.

Deleting a Frequency from a Car Number 1. Recall the car number. 2. Repeatedly press s or t until the frequency you want to delete appears. 3. Hold down DEL for about 1 second. The scanner beeps and the frequency disappears.

SCANNING BY CAR NUMBER Once you store car numbers into channels, you can set the scanner so it displays the car numbers you assigned to the channels as it scans them. To scan by car number, repeatedly press RACE until BANK and RACE appear, then press SCAN. As the scanner scans channels, the car numbers you stored appear in the order you stored them into their channels, from the lowest to the highest channel. Notes: • If no car number is assigned to a channel, --- appears instead of the car number. • If SQUELCH is adjusted so you always hear a hissing sound, the scanner does not scan properly. 33

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FINDING WHAT CAR NUMBERS ARE IN WHAT CHANNELS If you are listening to a channel and want to know what car number you are hearing, simply press RACE twice. If a car number has been associated with this frequency, the car number and frequency appear. Press RACE twice to return to normal channel listening. To see what car numbers are stored, press MAN then RACE, then repeatedly press DATA . The car numbers (from lowest channel number to highest) show.

34

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SPECIAL FEATURES TURNING MEMORY BANKS ON AND OFF You can turn each memory bank on and off. When you turn off a bank, the scanner does not scan any of the 10 channels in that bank. While scanning, press the number key that corresponds to the bank you want to turn on or off. When BANK appears, the scanner scans all the channels within the displayed banks that are not locked out (see “Locking Out Channels”). Notes: • You can manually select any channel within a bank, even if that bank is turned off. • You cannot turn off all banks. One bank must always be active.

LOCKING OUT CHANNELS You can increase the scanning speed by locking out channels that have a continuous transmission, such as a weather channel. To lock out a channel, manually select the channel, then press L-OUT so L/O appears. You can still manually select locked out channels. To remove the lockout from a channel, manually select the channel and press L-OUT so L/O disappears from the display. Or, to unlock all channels or frequencies in the banks that are turned on, press MAN to stop scanning, then hold down L-OUT until the scanner beeps twice. Note: If you select a weather frequency by pressing WX and then lock out that frequency, the scanner stores the frequency in its search skip memory. Follow the steps under “Search Skip Memory” on Page 27 to remove the lockout from the weather frequency.

PRIORITY The priority feature lets you scan through channels and still not miss important or interesting calls on specific channels. You can program one channel in each bank as a priority channel (for up to a total of 10 priority channels). If the priority feature is turned on, as the scanner scans a bank, the scanner checks that bank’s priority channel every 2 seconds for activity. 35

20-513.fm Page 36 Wednesday, August 4, 1999 2:39 PM

The scanner automatically designates each bank's first channel as its priority channel. Follow these steps to select a different channel as the priority channel. 1. Press PROG. 2. Enter the channel number you want to select as the priority channel, then press PRIORITY. P appears to the right of the channel number. R A CE

MA N

P R OG

BAN D

1-10

11-20

SCA N

21-30

HO LD

DATA

1

2

3

PRIORITY

L-OUT

31-40

41-50

51-60

H/S

S/S

4

5

6

61-70

71-80

81-90

7

8

9

91-100

WX

DEL

KEYLOCK

CLEA R

0

BA N K

5

P CH PGM

MHz

E

3. Repeat Steps 1–2 for the channel in each bank you want to program as a priority channel. To confirm all priority channel numbers, press PROG, then repeatedly press PRIORITY to step through the priority channels. To turn on the priority feature, press PRIORITY during scanning. PRI appears. To turn off the priority feature, press PRIORITY again. PRI disappears. Notes: • The priority feature must be turned off to use the data skip feature (see “Skipping Data Signals” on Page 39). •B AYou can lock out priority NK 1 channels. If you lock out all priority Pchannels, LOC OUt CH andMPA Nappear when you turn L/O on the priority feature.

36

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USING THE KEYLOCK Once you set up and store channels into your scanner, you can protect it from accidental changes by turning on the keylock feature. When locked, the only controls that operate are SCAN, MAN, KEYLOCK/ , VOLUME, and SQUELCH. To turn on the keylock, hold down KEYLOCK until K/L appears. To turn it off, hold down KEYLOCK until K/L disappears. MA N

R AC E

PR O G

B AN D

SCA N

BANK 1 1-10

11-20

21-30

HO LD

D ATA

1

2

3

PRIORITY

L-O UT

31-40

41-50

51-60

H/S

S/ S

4

5

6

61-70

DEL

7

KEYLOCK CLEA R

71- 80

K /L

P CH PGM

MHz

81- 90

8

9

91-100

WX

0

E

USING THE DISPLAY BACKLIGHT You can turn on the display backlight for easy viewing at night. Press to turn it on for 15 seconds. To turn it off before 15 seconds elapse, press the button again.

CHANGING SEARCH SPEEDS The PRO-74 has two search speeds. Normal Search 100 steps/second

Hypersearch 300 steps/second

To switch between normal and Hypersearch speeds, during a service bank or direct search, press H/S. HYPER appears during Hypersearch.

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Notes: • You can use Hypersearch only in the 5 kHz step bands (29–54 MHz and 137–174 MHz. • Since the marine service bank is not in one of the 5 kHz step bands, you cannot use Hypersearch in the marine service bank.

TURNING THE KEY TONE OFF/ON Your scanner comes set so each time you press a key, you hear a tone. To turn off the key tone, follow these steps. 1. Turn off the scanner. 2. While holding down L-OUT/S/S, turn on the scanner. OFF bEEP appears for about 3 seconds. R AC E

MA N

PR OG

1- 10

B AN D

11-20

SCA N

21-30

HOLD

D ATA

1

2

3

PRIORITY

L-O UT

31-40

41-50

51-60

H/S

S/S

4

5

61-70

DEL

7

K EYL OC K C L EA R

71- 80

6 81-90

8

9

91-100

WX

0

E

To turn the key tone back on, repeat these steps so on bEEP appears.

TURNING THE BATTERY SAVE FUNCTION OFF/ON To save battery power when a channel is manually selected or when you are programming the scanner, the scanner has a battery save function which automatically sets the scanner to a standby mode if no button is pressed for 5 seconds when no signal is detected, and sets the scanner back to full power mode when it detects a button press or receives a signal. The battery save function is set to on at the factory, but you can change it. S appears when the function is active. Note: If priority is turned on, the battery save function does not work even if a channel is manually selected. To turn the battery save function off or back on, turn off the scanner, then hold down PRIORITY/H/S and turn on the scanner. OFF SAVE or on SAVE briefly appears. 38

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SKIPPING DATA SIGNALS You can set the scanner so it skips nonmodulated or data signals (such as modem transmissions) during a search or scan. Note: Since data signals are not generally found in the air band, this feature does not work in the air band. To turn on the data skip feature, press DATA . DATA appears. To turn off the feature, press DATA again. DATA disappears.

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A GENERAL GUIDE TO SCANNING Reception of the frequencies covered by your scanner is mainly “lineof-sight.” That means you usually cannot hear stations that are beyond the horizon.

GUIDE TO FREQUENCIES National Weather Frequencies 162.400 162.425 162.450

162.475 162.500

162.525 162.550

Canadian Weather Frequencies 161.650

161.775

163.275

Note: The Canadian frequencies are not preprogrammed in this scanner, but you can manually search or store them.

VHF FM Marine Frequencies Frequency

Channel No.

Ship

Shore

6

156.3000

7

156.3500

8 9

40

Channel No.

Frequency Ship

Shore

156.3000

64 156.2550

156.2550

156.3500

65 156.2750

156.2750

156.4000

156.4000

66 156.3250

156.3250

156.4500

156.4500

67 156.3750

156.3750

10

156.5000

156.5000

68 156.4250

156.4250

11

156.5500

156.5500

69 156.4750

156.4750

12

156.6000

156.6000

70 156.5250

156.5250

13

156.6500

156.6500

71 156.5750

156.5750

14

156.7000

156.7000

72 156.6250

156.6250

15

156.7500

156.7500

73 156.6750

156.6750

16

156.8000

156.8000

74 156.7250

156.7250

17

156.8500

156.8500

77 156.8750

156.8750

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Channel No.

Frequency Ship

Shore

Frequency

Channel No.

Ship

Shore

19

156.9500

20

157.0000

21 22

Channel No. Channel No.

Frequency Ship

Shore

Frequency Ship

Shore

156.9500

79 156.9750

156.9750

161.6000

80 157.0250

157.0250

157.0500

157.0500

81 157.0750

157.0750

157.1000

157.1000

82 157.1250

157.1250

23

157.1500

157.1500

83 157.1750

157.1750

24

157.2000

161.8000

84 157.2250

161.8250

25

157.2500

161.8500

85 157.2750

161.8750

26

157.3000

161.9000

86 157.3250

161.9250

27

157.3500

161.9500

87 157.3750

161.9750

28

157.4000

162.0000

88 157.4250

157.4250

Birdie Frequencies Every scanner has birdie frequencies. Birdies are signals created inside the scanner’s receiver. These operating frequencies might interfere with broadcasts on the same frequencies. If you program one of these frequencies, you hear only noise on that frequency. If the interference is not severe, you might be able to turn SQUELCH clockwise to cut out the birdie. The birdie frequencies (in MHz) found in this scanner are: 31.2000

41.6000

52.6000

116.0375

171.2500

410.0000

430.0000

480.4750

489.1875

489.2500

489.3500

489.4500

489.5000

813.4000

814.0000

932.6000

932.8250

938.3750

940.9000

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To find the birdies in your particular scanner, begin by disconnecting the antenna and moving it away from the scanner. Make sure that no other nearby radios or TVs are turned on near the scanner. Use the search function to search every frequency range from its lowest to the highest frequency. Occasionally, the searching will stop as if it had found a signal, often without any sound. That is a birdie. Make a list of all the birdies in your scanner for future reference.

GUIDE TO THE ACTION BANDS Typical Band Usage VHF Band Low Range 6-Meter Amateur U.S. Government 2-Meter Amateur High Range

29.00–50.00 MHz 50.00–54.00 MHz 137.00–144.00 MHz 144.00–148.00 MHz 148.00–174.00 MHz

UHF Band U.S. Government 70-cm Amateur Low Range FM-TV Audio Broadcast, Wide Band Public Service Conventional Systems Conventional/Trunked Systems Trunked Systems Public Safety High Range 33-Centimeter Amateur Private Trunked General Trunked Fixed Services Studio-to-Transmitter Broadcast Links Private Fixed Services, Paging

42

406.00–420.00 MHz 420.00–450.00 MHz 450.00–470.00 MHz 470.00–512.00 MHz 806.00–823.93 MHz 851.00–856.00 MHz 856.00–861.00 MHz 861.00–866.00 MHz 866.00–868.93 MHz 896.11–902.00 MHz 902.00–928.00 MHz 935.00–940.00 MHz 940.00–941.00 MHz 941.00–944.00 MHz 944.00–952.00 MHz 952.00–956.00 MHz

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Primary Usage As a general rule, most of the radio activity is concentrated on the following frequencies: VHF Band Activities Government, Police, and Fire Emergency Services Railroad

Frequencies 153.785–155.980 MHz 158.730–159.460 MHz 160.000–161.900 MHz

UHF Band Activities Land-Mobile “Paired” Frequencies Base Stations Mobile Units Repeater Units Control Stations

Frequencies 450.000–470.000 MHz 451.025–454.950 MHz 456.025–459.950 MHz 460.025–464.975 MHz 465.025–469.975 MHz

Note: Remote control stations and mobile units operate at 5 MHz higher than their associated base stations and relay repeater units.

BAND ALLOCATION To help decide which frequency ranges to scan, use the following listing of the typical services that use the frequencies your scanner receives. These frequencies are subject to change, and might vary from area to area. For a more complete listing, refer to the book “Beyond Police Call,” available at your local RadioShack store. Abbreviations

Services

BIFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Boise (ID) Interagency Fire Cache BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Business CAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Civil Air Patrol CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Citizens Band CCA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common Carrier CSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional Systems CTSB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional/Trunked Systems

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FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire Department HAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio GOVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government GMR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio GTR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked IND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Industrial Services . . . . . . . . . . . . . (Manufacturing, Construction, Farming, Forest Products) MAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Military Amateur Radio MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (Coast Guard, Marine Telephone, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shipboard Radio, Private Stations) MARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Military Affiliate Radio System MED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Emergency/Medical Services MIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .U.S. Military MOV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video Industry NEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .New Mobile Narrow NEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relay Press (Newspaper Reporters) OIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil/Petroleum Industry POL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police Department PUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services . . . . . . . . . . . . (Public Safety, Local Government, Forestry Conservation) PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Private Trunked ROAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Road & Highway Maintenance RTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radio/TV Remote Broadcast Pickup TAXI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Taxi Services TELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mobile Telephone . . . . . . . . . . . . . . .(Aircraft, Radio Common Carrier, Landline Companies) TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Cordless Phones TELM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Telephone Maintenance TOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tow Trucks TRAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transportation Services . . . . . . . . . . . . . . . . . . . . . . .(Trucks, Tow Trucks, Buses, Railroad, Other) TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trunked Systems TVn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FM-TV Audio Broadcast USXX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Government Classified UTIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water Utilities WTHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weather VERY HIGH FREQUENCY (VHF) VHF Low Band —(29.7–50 MHz —in 5 kHz steps) 29.900–30.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 30.580–31.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, PUB 32.000–32.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 33.020–33.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB 34.010–34.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 35.020–35.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM 36.000–36.230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 36.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup 36.270–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 37.020–37.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, IND 38.000–39.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 39.020–39.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB 40.000–42.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI 42.020–42.940 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .POL

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42.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND 43.220–43.680 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TELM, IND, PUB 43.700–44.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAN 44.620–46.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB 46.600–46.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, TELC 47.020–47.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB 47.420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Red Cross 47.440–49.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, PUB 49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MIL, TELC 6-Meter Amateur Band— (50–54 MHz) 50.00–54.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM U.S. Government Band (137–144 MHz) 137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 2-Meter Amateur Band (144–148 MHz) 144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM VHF High Band (148–174 MHz) 148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL 150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 150.815–150.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup 150.995–151.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ROAD, POL 151.490–151.955 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS 151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM 152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB 152.270–152.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, TAXI, BUS 152.510–152.840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB 152.870–153.020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV 153.035–153.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, OIL, UTIL 153.740–154.445 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, FIRE 154.490–154.570 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, BUS 154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup 154.600–154.625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS 154.655–156.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB 156.255–157.425 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI 157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 157.470–157.515 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW 157.530–157.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI 157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS 157.770–158.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB 158.130–158.460 . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL 158.490–158.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB 158.730–159.465 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD 159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL 159.495–161.565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAN 161.580–162.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI, RTV 162.0125–162.35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX 162.400–162.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR 162.5625–162.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX 162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 162.6875–163.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX 163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 163.275–166.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX

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166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE 166.275–169.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, BIFC 169.445–169.505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT 169.55–169.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX 170.000–170.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE 170.175–170.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT 170.245–170.305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes 170.350–170.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL 170.425–170.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC 170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB 170.4875–173.175 . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, PUB, Wireless Mikes 173.225–173.5375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOV, NEWS, UTIL, MIL 173.5625–173.5875 . . . . . . . . . . . . . . . . . . . . . . . . . .MIL Medical/Crash Crews 173.60–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT ULTRA HIGH FREQUENCY (UHF) U. S. Government Band (406–420 MHz) 406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, USXX 70-cm Amateur Band (420–450 MHz) 420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM Low Band (450–470 MHz) 450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RTV 451.025–452.025 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, TELM, UTIL 452.0375–453.00 . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, TRAN TOW, NEWS 453.0125–454.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, OIL 454.025–454.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB 455.050–455.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RTV 457.525–457.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS 458.025–458.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 460.0125–460.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB 460.650–462.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS 462.1875–462.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND 462.4625–462.525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, TELM, UTIL 462.550–462.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GMR, BUS 462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED 463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz) (Channels 14 through 69 in 6 MHz steps) 475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14 481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15 487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 511.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20

Note: Some cities use the 470–512 MHz band for land/mobile service.

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Conventional Systems Band – Locally Assigned 851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CSB Conventional/Trunked Systems Band – Locally Assigned 856.0125–860.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CTSB Trunked Systems Band – Locally Assigned 861.0125–865.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB Public Safety Band – Locally Assigned 866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PSB 33-Centimeter Amateur Band (902–928 MHz) 902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM Private Trunked 935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR General Trunked 940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GTR

FREQUENCY CONVERSION The tuning location of a station can be expressed in frequency (kHz or MHz) or in wavelength (meters). The following information can help you make the necessary conversions. 1 MHz (million) = 1,000 kHz (thousand) To convert MHz to kHz, multiply the number of megahertz by 1,000: 9.62 (MHz) x 1000 = 9620 kHz To convert from kHz to MHz, divide the number of kilohertz by 1,000: 2780 (kHz) ÷ 1000 = 2.780 MHz To convert MHz to meters, divide 300 by the number of megahertz: 300 ÷ 7.1 MHz = 42.25 meters

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TROUBLESHOOTING If you have problems, here are some suggestions that might help. If none do, take your scanner to your local RadioShack store for assistance. PROBLEM

POSSIBLE CAUSE

REMEDY

Keys do not work or display changes at random.

Undetermined error.

Reset the scanner (see “Resetting the Scanner” on Page 49).

Scanner is on but will not scan.

SQUELCH is not correctly adjusted.

Adjust SQUELCH clockwise.

Only one channel or no channels are stored.

Store frequencies into more than one channel.

No power.

Check the batteries or make sure the scanner is plugged into a working AC or DC outlet.

Scanner is totally inoperative.

Be sure the adapter’s barrel plug is fully plugged into the POWER jack. Recharge the rechargeable batteries or replace the non-rechargeable batteries. The scanner’s display dims or the scanner sounds a tone every 15–30 seconds.

Keypad does not work.

48

Batteries are not correctly installed.

Make sure the batteries are installed with the proper polarity (+ to + and – to –).

Batteries are low.

Recharge the rechargeable batteries or replace the non-rechargeable batteries.

The keylock function is activated.

To turn off the keylock, press KEYLOCK until K/L disappears.

20-513.fm Page 49 Wednesday, August 4, 1999 2:39 PM

PROBLEM

POSSIBLE CAUSE

REMEDY

appears. PROBLEM

The batteries are weak. POSSIBLE CAUSE

Recharge rechargeable batteries, or replace nonREMEDY rechargeable batteries.

Poor or no reception.

Batteries are weak or dead.

Check the batteries, or make sure the scanner is plugged into a working AC or DC outlet.

Error appears.

Frequency entered incorrectly.

Re-enter the frequency correctly, including the decimal point.

While scanning, the scanner locks on frequencies that have an unclear transmission.

Stored frequencies are the same as “birdie” frequencies.

Avoid storing frequencies listed under “Birdie Frequencies” on Page 41, or only listen to them manually.

BATT.Lo

RESETTING THE SCANNER If the scanner’s display locks up or does not work properly after you connect power, you might need to reset the scanner. Caution: This procedure clears all the information you have stored into the scanner (such as frequencies and car numbers). Before you reset the scanner, try turning it off and on to see if it begins working properly. Reset the scanner only when you are sure it is not working properly. 1. Turn off the scanner. 2. While you hold down the 2 and 9 keys, turn on the scanner. If you still have problems after resetting the scanner, take it to your local RadioShack store.

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CARE AND MAINTENANCE Your RadioShack PRO-74 100-Channel VHF/UHF/Air/800 MHz Race Scanner is an example of superior design and craftsmanship. The following suggestions will help you care for your scanner so you can enjoy it for years. Keep the scanner dry. If it gets wet, wipe it dry immediately. Liquids can contain minerals that can corrode the electronic circuits.

Use only batteries of the required size and recommended type. Always remove old and weak batteries. They can leak chemicals that destroy electronic circuits.

Handle the scanner gently and carefully. Dropping it can damage circuit boards and cases and can cause the scanner to work improperly.

Use and store the scanner only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, damage batteries, and distort or melt plastic parts. Keep the scanner away from dust and dirt, which can cause premature wear of parts.

Wipe the scanner with a damp cloth occasionally to keep it looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the scanner.

Modifying or tampering with your scanner’s internal components can cause a malfunction, invalidate the scanner’s warranty, and void your FCC authorization to operate it. If your scanner is not operating as it should, take it to your local RadioShack store for assistance. 50

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SPECIFICATIONS Frequency Coverage ............................... 29–54 MHz (in 5 kHz steps) 108–136.975 MHz (in 12.5 kHz steps) 137–174 MHz (in 5 kHz steps) 406–512 MHz (in 12.5 kHz steps) 806.0000–823.9375 MHz (in 12.5 kHz steps) 851.0000–868.9375 MHz (in 12.5 kHz steps) 896.1125–956.0000 MHz (in 12.5 kHz steps) Channels ........................................................................................ 100 Sensitivity: (FM: 20 dB S/N at 3 kHz deviation) (AM: 20 dB S/N at 60% modulation) 29–54 MHz ......................................................................... 108–136.975 MHz .............................................................. 137–174 MHz ..................................................................... 406–512 MHz ..................................................................... 806–956 MHz .....................................................................

0.5 1.5 0.4 0.3 0.8

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Scan Speed ............................................................. 50 Channels/Sec. Search Speed .............................................................. 100 Steps/Sec. Priority Sampling .................................................................. 2 Seconds Delay Time ........................................................................... 2 Seconds IF Frequencies ........................... 380.7 MHz, 10.85 MHz, and 450 kHz Audio Power ........................................................... 330 mW Maximum Built-in Speaker ............... 17/16 Inches (36 mm) 8 Ohm, Dynamic Type Maximum Current Drain ........................................................... 160 mA Power Requirement ................... 4 AA Alkaline Batteries (6.0 VDC), or 4 AA Rechargeable Ni-Cd Batteries (4.8 VDC), or AC Adapter (Cat. No. 273-1665), or DC Adapter (Cat. No. 270-1560) Dimensions (HWD) ........................................ 6 1/2 × 25/8 × 111/16 Inches (163.9 × 66 × 43.3 mm) Weight (w/o batteries and antenna) ............................................ 8.1 oz (228.9 g) Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice.

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Limited One-Year Warranty This product is warranted by RadioShack against manufacturing defects in material and workmanship under normal use for one (1) year from the date of purchase from RadioShack company-owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of incidental or consequential damages, so the above limitations or exclusions may not apply to you. In the event of a product defect during the warranty period, take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, unless otherwise provided by law: (a) correct the defect by product repair without charge for parts and labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase price. All replaced parts and products, and products on which a refund is made, become the property of RadioShack. New or reconditioned parts and products may be used in the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original warranty period. You will be charged for repair or replacement of the product made after the expiration of the warranty period. This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment or reinstallation. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102

We Service What We Sell

3/97

RadioShack A Division of Tandy Corporation Fort Worth, Texas 76102 6A8

UBZZ01292ZZ Printed in the Philippines